diff --git a/build.zig b/build.zig
index ed72b22..b9b2a14 100644
--- a/build.zig
+++ b/build.zig
@@ -41,6 +41,7 @@ pub fn build(b: *std.Build) !void {
     default_tty_str = try std.fmt.allocPrint(b.allocator, "{d}", .{default_tty});
 
     build_options.addOption([]const u8, "config_directory", bin_directory);
+    build_options.addOption([]const u8, "prefix_directory", prefix_directory);
     build_options.addOption([]const u8, "version", version_str);
     build_options.addOption(u8, "tty", default_tty);
     build_options.addOption(bool, "enable_x11_support", enable_x11_support);
diff --git a/res/config.ini b/res/config.ini
index 7faf2e7..619dd6a 100644
--- a/res/config.ini
+++ b/res/config.ini
@@ -186,4 +186,5 @@ xsessions = $PREFIX_DIRECTORY/share/xsessions
 # Brightness control
 brightness_down_key = F5
 brightness_up_key = F6
+brightnessctl = $PREFIX_DIRECTORY/bin/brightnessctl
 brightness_change = 10
diff --git a/src/config/Config.zig b/src/config/Config.zig
index 4d2b270..64718e4 100644
--- a/src/config/Config.zig
+++ b/src/config/Config.zig
@@ -28,33 +28,33 @@ lang: []const u8 = "en",
 load: bool = true,
 margin_box_h: u8 = 2,
 margin_box_v: u8 = 1,
-mcookie_cmd: [:0]const u8 = "/usr/bin/mcookie",
+mcookie_cmd: [:0]const u8 = build_options.prefix_directory ++ "/bin/mcookie",
 min_refresh_delta: u16 = 5,
 numlock: bool = false,
 path: ?[:0]const u8 = "/sbin:/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin",
 restart_cmd: []const u8 = "/sbin/shutdown -r now",
 restart_key: []const u8 = "F2",
 save: bool = true,
-save_file: []const u8 = "/etc/ly/save",
+save_file: []const u8 = build_options.config_directory ++ "/ly/save",
 service_name: [:0]const u8 = "ly",
 shutdown_cmd: []const u8 = "/sbin/shutdown -a now",
 shutdown_key: []const u8 = "F1",
 sleep_cmd: ?[]const u8 = null,
 sleep_key: []const u8 = "F3",
-term_reset_cmd: [:0]const u8 = "/usr/bin/tput reset",
-term_restore_cursor_cmd: []const u8 = "/usr/bin/tput cnorm",
+term_reset_cmd: [:0]const u8 = build_options.prefix_directory ++ "/bin/tput reset",
+term_restore_cursor_cmd: []const u8 = build_options.prefix_directory ++ "/bin/tput cnorm",
 tty: u8 = build_options.tty,
 vi_mode: bool = false,
 vi_default_mode: ViMode = .normal,
 wayland_cmd: []const u8 = build_options.config_directory ++ "/ly/wsetup.sh",
-waylandsessions: []const u8 = "/usr/share/wayland-sessions",
-x_cmd: []const u8 = "/usr/bin/X",
+waylandsessions: []const u8 = build_options.prefix_directory ++ "/share/wayland-sessions",
+x_cmd: []const u8 = build_options.prefix_directory ++ "/bin/X",
 xinitrc: ?[]const u8 = "~/.xinitrc",
 x_cmd_setup: []const u8 = build_options.config_directory ++ "/ly/xsetup.sh",
-xauth_cmd: []const u8 = "/usr/bin/xauth",
-xsessions: []const u8 = "/usr/share/xsessions",
+xauth_cmd: []const u8 = build_options.prefix_directory ++ "/bin/xauth",
+xsessions: []const u8 = build_options.prefix_directory ++ "/share/xsessions",
 brightness_down_key: []const u8 = "F5",
 brightness_up_key: []const u8 = "F6",
-brightnessctl: []const u8 = "/usr/bin/brightnessctl",
+brightnessctl: [:0]const u8 = build_options.prefix_directory ++ "/bin/brightnessctl",
 brightness_change: []const u8 = "10",
 animation_timeout_sec: u12 = 0,
diff --git a/src/main.zig b/src/main.zig
index 1bd9dd8..3cd9ac5 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -594,7 +594,7 @@ pub fn main() !void {
                         var sleep = std.process.Child.init(&[_][]const u8{ "/bin/sh", "-c", sleep_cmd }, allocator);
                         _ = sleep.spawnAndWait() catch .{};
                     }
-                } else if (pressed_key == brightness_down_key and unistd.access(&config.brightnessctl[0], unistd.X_OK) == 0) brightness_change: {
+                } else if (pressed_key == brightness_down_key and unistd.access(config.brightnessctl, unistd.X_OK) == 0) brightness_change: {
                     const brightness_str = std.fmt.allocPrint(allocator, "{s}%-", .{config.brightness_change}) catch {
                         try info_line.addMessage(lang.err_brightness_change, config.error_bg, config.error_fg);
                         break :brightness_change;
@@ -602,7 +602,7 @@ pub fn main() !void {
                     defer allocator.free(brightness_str);
                     var brightness = std.process.Child.init(&[_][]const u8{ config.brightnessctl, "-q", "s", brightness_str }, allocator);
                     _ = brightness.spawnAndWait() catch .{};
-                } else if (pressed_key == brightness_up_key and unistd.access(&config.brightnessctl[0], unistd.X_OK) == 0) brightness_change: {
+                } else if (pressed_key == brightness_up_key and unistd.access(config.brightnessctl, unistd.X_OK) == 0) brightness_change: {
                     const brightness_str = std.fmt.allocPrint(allocator, "+{s}%", .{config.brightness_change}) catch {
                         try info_line.addMessage(lang.err_brightness_change, config.error_bg, config.error_fg);
                         break :brightness_change;